2022
DOI: 10.1111/1365-2435.14004
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Competition–colonisation trade‐offs are found among but not within wind‐dispersed Pinus species

Abstract: 1. The competition-colonisation trade-off is recognised as a key mechanism for diversity maintenance, whereby weak competitors can avoid competition with stronger competitors due to their greater dispersal ability. To date, most theoretical and empirical work has focused on trade-offs among different species yet a within-species perspective is crucial to assess the scope for natural selection on competition-colonisation trade-offs.2. For six wind-dispersed Pinus species encompassing a wide range of seed masses… Show more

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Cited by 4 publications
(3 citation statements)
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“…Small and spherical seeds and with high light dependence can remain in a non-germinated state for extended periods in the soil due to limited light penetration into the surface soil [16,[70][71][72]. Small seeds can offset the disadvantages of limited spatial dispersal and seedling competition by maintaining long-term vitality in the soil through a time-dispersal strategy, such as forming a persistent soil seed bank [5,73,74]. Moreover, non-spherical seeds (elongated or disc-shaped) often exhibit higher germination percentage than spherical seeds due to higher water uptake [12,31,75,76].…”
Section: Discussionmentioning
confidence: 99%
“…Small and spherical seeds and with high light dependence can remain in a non-germinated state for extended periods in the soil due to limited light penetration into the surface soil [16,[70][71][72]. Small seeds can offset the disadvantages of limited spatial dispersal and seedling competition by maintaining long-term vitality in the soil through a time-dispersal strategy, such as forming a persistent soil seed bank [5,73,74]. Moreover, non-spherical seeds (elongated or disc-shaped) often exhibit higher germination percentage than spherical seeds due to higher water uptake [12,31,75,76].…”
Section: Discussionmentioning
confidence: 99%
“…Pinus radiata (radiata pine, Monterey pine) is the most important non‐native conifer in the global timber industry (Lavery & Mead, 1998), with over 4.5 million ha of plantations worldwide, 90% of which occur in the Southern Hemisphere (Mead, 2013). The species is light demanding (Wyse & Hulme, 2022) and the density of naturally establishing seedlings in a fragmented forest in Chile was found to correlate negatively with canopy cover (Gómez et al, 2019). Roadsides and coastal habitats also provide suitable environments for P. radiata establishment (Williams & Wardle, 2007), while droughts, frost (Burdon & Miller, 1992) and strong browsing pressure from stock and other herbivores (Crozier & Ledgard, 1990) are thought to retard or inhibit establishment.…”
Section: Methodsmentioning
confidence: 99%
“…For instance, seeds are under selective pressure to increase their overall size (Harper et al, 1970; Smith and Fretwell, 1974) because increased seed size may lead to increased germination, seedling survival, establishment, and competitive ability (Thompson et al, 1993; Andersson, 1996; Gómez, 2004; Seltmann et al, 2007). However, an increase in size generally hinders dispersal, especially for wind‐dispersed diaspores (Green, 1980), establishing a trade‐off between colonization and competition (Turnbull et al, 1999; Wyse and Hulme, 2022). Heterocarpic species produce two types of diaspores on the same plant.…”
mentioning
confidence: 99%